body{
	height: 100vh;
}
/*底部的工具栏*/
nav{
	   /*固定在底部*/
	position: fixed;
	width: 100vw;
	z-index: 9999;
	bottom: 0;
	background: #FFFFFF;	
}

ul.toolbar{
	height: 8.5vh;
	border-top:1px solid lightgray;
	  /*使用弹性布局*/
	display: flex;	
	justify-content: space-around;
	align-items: center;
}
.toolbar li{
	width: 25vw;
}
.toolbar li span{
	display: block;
	text-align: center;
	color: gray;
}
/*图标*/
.toolbar li .glyphicon{
	font-size: 1rem;
}
.toolbar li .text{
	font-size: 0.6rem;
}
.toolbar .toolbar-active span{
	color: orange;
}

/*iframe*/
iframe{
	height: calc(100vh - 8.5vh);
	width: 100vw;
	border: none;
	background-color: pink;
}













